ArticlePolymers2026
Influence of Deep Eutectic Solvents and Polyphenolic Extracts on the Structure and Functional Properties of Sodium Alginate Films.
Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Volatile Natural Deep Eutectic Solvents (VNADESs) for Extraction of Shikonin Derivatives fromMolecules (Basel, Switzerland) · 2026Article
- The Effect of the Extraction Medium (A Natural Deep Eutectic Solvent-Derived System vs. Ethanol) on the Properties of Electrospun PVA Fibers ContainingMaterials (Basel, Switzerland) · 2026Article
- The Effect of Gold Nanoparticles in Sodium Alginate on the Biochemical Characteristics of Garden Cress.Molecules (Basel, Switzerland) · 2026Article
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Authors and funding
6 authors.
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Abstract
The growing demand for biodegradable and functional packaging has driven research toward polysaccharide-based materials with improved performance. In this study, sodium alginate films were modified using natural deep eutectic solvents (NADES) and acorn polyphenolic extract to enhance their antimicrobial, mechanical, and thermal properties. The films were acquired by solvent casting and characterized through mechanical, spectroscopic, thermal, and microbiological analyses. Both NADES and the polyphenolic extract enhanced tensile strength and flexibility through additional hydrogen bonding within the alginate network, while the extract also introduced antioxidant functionality. Among all tested formulations, the A4E2 film exhibited the most balanced performance. FTIR spectra revealed hydrogen bonding between the film components, and thermogravimetric analysis showed an approximately 15 °C (F-EXT) and 20 °C (F-DES) shift in the main DTG degradation peak, indicating enhanced thermal stability. Controlled-release experiments demonstrated the gradual diffusion of phenolic compounds in aqueous, acidic, and fatty simulants, with an initial release phase within the first 6 h followed by sustained release up to 48 h, confirming the films' suitability for various food environments. The combined modification reduced the growth of
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